package com.kurtph.sistema.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import com.kurtph.sistema.vendas.HibernateUtil;

public class ConexaoHibernateFilter implements Filter{
	
	private SessionFactory sf;
	

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest ServletFilter, ServletResponse ServletResponse,
			FilterChain chain) throws IOException, ServletException {
		
		
		try {
			
			this.sf.getCurrentSession().beginTransaction();
			chain.doFilter(ServletFilter, ServletResponse);
			this.sf.getCurrentSession().getTransaction().commit();
			this.sf.getCurrentSession().close();
			
		} catch (Throwable ex) {
			
			try {
				if (this.sf.getCurrentSession().getTransaction().isActive()){
					this.sf.getCurrentSession().getTransaction().rollback();
					
				}
				
			} catch (Exception t) {
				t.printStackTrace();		
				
			}
			throw new ServletException();

			
		}

	}

	@Override
	public void init(FilterConfig conf) throws ServletException {
		
		this.sf = HibernateUtil.getSession();
		
		
	}

}
